Given the function f: x ⟼ 2x − 1 the value of f(-3) is:
5.
-7.
-5.
7.
The inverse of the function f(x) = 3x is:
3/x.
2/3x.
3x/2.
x/3.
Given the mapping in the figure, the range set is:
{2, 5, 8}.
{1, 2, 5, 5, 8}
{2, 3, 5}
{1, 2, 3, 4}
Given that f(x) = x and g(x) = 3x - 2, then the composite function gf(x) is:
(x - 2) / 3.
(x + 2) / 3.
3x - 2.
3x² - 2x.
The figure is a quadratic graph of y = f(x).
The solution of f(x) = 0 is/are:
3.
1.
-1 and 3.
1 and -3.
